| 摘要 |
<p>The invention provides a sail boat rig comprising an elongate sail support element, a wishbone boom associated with said sail support element, a sail having a tubular portion defined in a leading part thereof, and a plurality of sail-shaped forms fitted over said sail support element, said tubular portion being drawn over said sail-shaping forms to form a streamlined air-filled bag over the leading part of the sail.</p> |
